Display panel and display device

ABSTRACT

A display panel and a display device are provided. The display panel comprises a substrate, a plurality of sub-pixels, a plurality of data lines, a plurality of wiring structures and a plurality of pads. The substrate comprises a display area and a non-display area comprising a bending area. The sub-pixels and data lines are in the display area and electrically connected with each other. The wiring structures are in the bending area and electrically connected with the data lines. At least one wiring structure comprises a plurality of hollow patterns connected successively, each hollow pattern comprises a first conductive part and a second conductive part connected with each other. The plurality of pads are in the non-display area and located on a side of the plurality of wiring structures away from the display area and electrically connected with the plurality of wiring structures.

CROSS REFERENCE OF RELATED APPLICATIONS

The present application is a continuation-in-part application based onan U.S. patent application Ser. No. 15/779,664 filed on May 29, 2018which is the national stage entry of PCT/CN2017/109710, filed Nov. 7,2017 and claims the right of priority to the Chinese Patent ApplicationNo. 201710294993.1 filed on Apr. 28, 2017, the entire disclosures ofwhich are incorporated herein by reference.

TECHNICAL FIELD

This disclosure relates to the field of display technology, particularlyto a display panel and a display device.

BACKGROUND

In order to manufacture a flexible display device, many displaycomponents made of organic materials have been developed, such asorganic light emitting layers, organic passivation layers and polymersubstrates (e.g. PI substrates) as flexible substrates. But it isdifficult to replace the metal wiring in the display device with awiring made of organic materials, because the electrical conductivity oforganic materials is far lower than the metal wiring. However, when theflexible display device is bent, the metal wiring in the display panelmight be broken (the broken wiring ratio is about 1%), which results infailure of the display device.

SUMMARY

An embodiment of the disclosure provides a display panel, comprising: asubstrate comprising a display area and a non-display area on at leastone side of the display area, the non-display area comprising a bendingarea; a plurality of sub-pixels in the display area; and a plurality ofdata lines located in the display area and electrically connected withthe plurality of sub-pixels; a plurality of wiring structures located inthe bending area and electrically connected with the plurality of datalines. At least one of the plurality of wiring structures comprises aplurality of hollow patterns connected successively, each hollow patternof the hollow patterns comprises a first conductive part having a firstpattern and a second conductive part having a second pattern, whereinthe first conductive part and the second conductive part are connectedwith each other, and the first pattern and the second pattern havedifferent shapes. The display panel further comprises a plurality ofpads in the non-display area. The plurality of pads are located on aside of the plurality of wiring structures away from the display areaand electrically connected with the plurality of wiring structures.

According to some embodiments of the disclosure, the first conductivepart and the second conductive part of the hollow pattern both comprisea first terminal and a second terminal, the first terminal of the firstconductive part is connected with the first terminal of the secondconductive part, and the second terminal of the first conductive part isconnected with the second terminal of the second conductive part, suchthat first conductive part and the second conductive part are connectedwith each other to form a closed pattern.

According to some embodiments of the disclosure, the first conductivepart comprises a bending segment, the second conductive part comprisesan arc segment, a length of the bending segment extends between thefirst terminal and the second terminal of the first conductive part, alength of the arc segment extends between the first terminal and thesecond terminal of the second conductive part, such that the bendingsegment and the arc segment form the closed pattern. According to someembodiments of the disclosure, the closed pattern comprises an opening,a shape of the opening comprises at least one selected form a groupconsisting of an ellipse, a circle, a pentagon, a hexagon and anirregular shape.

According to some embodiments of the disclosure, for two adjacent hollowpatterns of the plurality of hollow patterns, the first terminal of thefirst conductive part in one of the two adjacent hollow patterns isconnected with the second terminal of the first conductive part in theother one of the two adjacent hollow patterns, and the first terminal ofthe second conductive part in the one of the two adjacent hollowpatterns is connected with the second terminal of the second conductivepart in the other one of the two adjacent hollow patterns.

According to some embodiments of the disclosure, the first conductivepart and the second conductive part of each hollow pattern of theplurality of hollow patterns are connected with each other to form atleast three connection nodes, the at least three connection nodes arenot in a same straight line,

According to some embodiments of the disclosure, the first conductivepart comprises a first sub-conductive portion and a secondsub-conductive portion, each of the first sub-conductive portion, thesecond sub-conductive portion and the second conductive part comprises afirst terminal and a second terminal, and a length of each of the firstsub-conductive portion, the second sub-conductive portion and the secondconductive part extends between respective first terminal and respectivesecond terminal. In each hollow pattern of the plurality of hollowpatterns, the first terminal of the first sub-conductive portion isconnected with the first terminal of the second conductive part to forma first connection node of the at least three connection nodes, thesecond terminal of the first sub-conductive portion is connected withthe first terminal of the second sub-conductive portion to form a secondconnection node of the at least three connection nodes, and the secondconnection node is connected to a position between the first terminaland the second terminal of the second conductive part, the secondterminal of the second sub-conductive portion is connected with thesecond terminal of the second conductive part to form a third connectionnode of the at least three connection nodes.

According to some embodiments of the disclosure, for any two adjacenthollow patterns of the plurality of hollow patterns, the firstconnection node formed by the first terminal of the first sub-conductiveportion in one of the two adjacent hollow patterns and the firstterminal of the second conductive part in the one of the two adjacenthollow patterns is connected with the third connection node formed bythe second terminal of the second sub-conductive portion in the otherhollow pattern of the two adjacent hollow patterns and the secondterminal of the second conductive part in the other hollow pattern.

According to some embodiments of the disclosure, each of the firstsub-conductive portion, the second sub-conductive portion and the secondconductive part comprises an arc shape.

According to some embodiments of the disclosure, any two adjacent hollowpatterns of the plurality of hollow patterns form a centrally symmetricpattern.

According to some embodiments of the disclosure, any two adjacent hollowpatterns of the plurality of hollow patterns form an axially symmetricpattern.

According to some embodiments of the disclosure, a plurality of firstconductive parts of the plurality of hollow patterns comprising thefirst conductive part form an integrated structure. According to someembodiments of the disclosure, a plurality of second conductive parts ofthe plurality of hollow patterns comprising the second conductive partform an integrated structure.

According to some embodiments of the disclosure, the display panelfurther comprises a plurality of first fan-out wires between the displayarea and the bending area, each of the plurality of first fan-out wiresis electrically connected with a corresponding data line of theplurality of data lines and a corresponding wiring structure of theplurality of wiring structures, respectively.

According to some embodiments of the disclosure, the display panelfurther comprises a plurality of second fan-out wires, the plurality ofsecond fan-out wires is located between the plurality of pads and theplurality of wiring structures and electrically connected with theplurality of pads and the plurality of wiring structures.

According to some embodiments of the disclosure, at least some of theplurality of wiring structures comprises a first sub-wiring and a secondsub-wiring, the first sub-wiring and the second sub-wiring are connectedin parallel with each other.

According to some embodiments of the disclosure, each of the firstsub-wiring and the second sub-wiring comprises a first terminal and asecond terminal, the first terminal of the first sub-wiring and thefirst terminal of the second sub-wiring are connected with acorresponding first fan-out wire of the plurality of first fan-outwires, the second terminal of the first sub-wiring and the secondterminal of the second sub-wiring are connected with a correspondingsecond fan-out wire of the plurality of second fan-out wires. Anotherembodiment of the disclosure provides a display device, comprising thedisplay panel according to any one of the foregoing embodiments.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic partial view of a display panel according to anembodiment of the disclosure, where the bending area is not bent;

FIG. 2 illustrates the display panel of FIG. 1 where the bending area isbent;

FIG. 3 is a schematic view of two adjacent hollow patterns of the wiringstructure in a display panel provided by another embodiment of thisdisclosure;

FIG. 4 is a schematic view of a single hollow pattern of the wiringstructure in a display panel provided by another embodiment of thisdisclosure;

FIG. 5 is a schematic view of two adjacent hollow patterns of the wiringstructure in a display panel provided by another embodiment of thisdisclosure;

FIG. 6 is a schematic view of two adjacent hollow patterns of the wiringstructure in a display panel provided by yet another embodiment of thisdisclosure;

FIG. 7 illustrates an enlarged view of multiple wiring structures in thedisplay panel as shown in FIG. 1 where the bending area is not bent;

FIG. 8 is a schematic view of the wiring structure in a display panelprovided by yet another embodiment of this disclosure;

FIG. 9 illustrates a single hollow pattern of the wiring structure ofFIG. 8; and

FIG. 10 illustrates the wiring structure and the fan-out wires connectedtherewith in a display panel according to yet another embodiment.

DETAILED DESCRIPTION OF EMBODIMENTS

In order to enable the skilled person in the art to better understandthe technical solutions of embodiments of this disclosure, in thefollowing, the embodiments of this disclosure will be described in moredetails in conjunction with the drawings and the examples.

Referring to FIGS. 1 and 2, a display panel according to an embodimentof the disclosure comprises a substrate 100, the substrate 100 comprisesa display area 1A and a non-display area on at least one side of thedisplay area 1A. The non-display area comprises a bending area BB. FIGS.1 and 2 respectively illustrate a first state of the display panel inwhich the bending area BB is not bent and a second state of the displaypanel in which the bending area BB is bent. In case the bending area BBis bent, the substrate 100 forms a main portion including the displayarea 1A and a back portion 2A extending from the main portion via thebending area BB towards a back surface of the main portion. A bendingaxis of the bending area BB is indicated as AX in FIG. 2, which isparallel to an edge of the substrate. The substrate may bend around thebending axis AX, such that the back portion 2A extends towards the backsurface of the main portion. With the bending area BB bent, the mainportion and the back portion 2A may form any suitable angle, which isnot restricted herein.

The display panel further comprises a plurality of sub-pixels 10 and aplurality of data lines 40 in the display area 1A, the data lines 40 areelectrically connected with the plurality of sub-pixels 10. As shown inFIG. 1, the display panel further comprises a plurality of wiringstructures 30 and a plurality of pads 50, the wiring structures 30 arelocated in the bending area BB and electrically connected with the datalines 40. At least one of the plurality of wiring structures 30comprises a plurality of hollow patterns connected successively, eachhollow pattern of the hollow patterns comprises a first conductive parthaving a first pattern and a second conductive part having a secondpattern. The first conductive part and the second conductive part areconnected with each other, and the first pattern and the second patternhave different shapes. The plurality of pads 50 are in the non-displayarea, specifically, the pads 50 are located on a side of the pluralityof wiring structures away from the display area 1A and electricallyconnected with the plurality of wiring structures 30.

Since the display panel provided by the embodiment of the disclosurecomprises the above-defined wiring structures, the display panel canrelease the stress through the hollow patterns of the wiring structuresin the process of bending, stretching and twisting, so as to avoidbreaking of the wiring structures that may result in failure of thedevices on the substrate. Particularly for a flexible display panel, dueto its characteristic of being easily bending, the wiring structuresdescribed in the embodiment of this disclosure can improve the yield ofthe flexible display panel greatly. Additionally, the pads 50 may beconfigured to electrically connect with an integrated circuit, forexample, the pads 50 may be connected with a source driver so that datasignals are supplied when the display panel is in operation. Accordingto some embodiments, as shown in FIG. 2, the pads are located on theback portion 2A when the bending area BB is bent. Next, the wiringstructures in the display panel provided by the embodiments of thedisclosure will be set forth in detail by way of examples.

As shown in FIG. 3 to FIG. 9, at least some of the wiring structures inthe display panel provided by some embodiments of the disclosurecomprise a plurality of hollow patterns 1 connected successively, eachhollow pattern 1 of the hollow patterns comprises a first conductivepart 11 having a first pattern and a second conductive part 12 having asecond pattern, the first conductive part 11 and the second conductivepart 12 are connected with each other, and the first pattern and thesecond pattern have different shapes.

Because the wiring structure comprises a plurality of hollow patternsconnected successively, compared with a conventional linear type wiringstructure, the wiring structure described in the embodiment of thisdisclosure can release the stress through the hollow patterns in theprocess of bending, stretching and twisting, so as to avoid breaking ofthe wiring structure that may result in failure of the devices on thesubstrate of the display panel. Moreover, the first conductive part 11and the second conductive part 12 in each hollow pattern 1 havedifferent shapes, hence, even if the conductive part of one shape in thewiring structure is broken in the process of bending, stretching andtwisting, the conductive part of the other shape can ensure goodconductivity for the wiring structure. Particularly for a flexiblesubstrate, due to its characteristic of being easily bending, using thewiring structure proposed in the embodiment of this disclosure canimprove the yield of the flexible substrate greatly.

In an example, as shown in FIG. 3 and FIG. 4, the first conductive part11 and the second conductive part 12 of each hollow pattern 1 of thewiring structure both comprise a first terminal 11 a, 12 a and a secondterminal 11 b, 12 b. The first terminal 11 a of the first conductivepart 11 is connected with the first terminal 12 a of the secondconductive part 12, and the second terminal 11 b of the first conductivepart 11 is connected with the second terminal 12 b of the secondconductive part 12. That is, the first conductive part 11 and the secondconductive part 12 are connected with each other to form a closed hollowpattern 1. The hollow pattern 1 comprises two connection nodes, i.e., aconnection node formed by the first terminal 11 a of the firstconductive part 11 and the first terminal 12 a of the second conductivepart 12, and another connection node formed by the second terminal 12 bof the first conductive part 11 and the second terminal 12 b of thesecond conductive part 12.

Moreover, as shown in FIG. 3, for two adjacent hollow patterns of thewring structure, the first terminal 11 a of the first conductive part 11of one of the two hollow patterns is connected with the second terminal11 b of the first conductive part of the other hollow pattern of the twohollow patterns, and the first terminal 12 a of the second conductivepart 12 in the one of the two hollow patterns is connected with thesecond terminal 12 b of the second conductive part 12 of the otherhollow pattern. That is to say, in the wiring structure shown in FIG. 3,the first conductive parts 11 in any adjacent hollow patterns 1 areconnected end to end, and the second conductive parts 12 in any adjacenthollow patterns 1 are connected end to end. In this way, any twoadjacent hollow patterns 1 of the wiring structure form a centrallysymmetric pattern, with a connection node between the two hollowpatterns being a center.

According to some embodiments, as shown in FIG. 4, the first conductivepart 11 comprises a bending segment, the second conductive part 12comprises an arc segment, a length of the bending segment extendsbetween the first terminal 11 a and the second terminal 11 b of thefirst conductive part, a length of the arc segment extends between thefirst terminal 12 a and the second terminal 12 b of the secondconductive part, such that the bending segment and the arc segment formthe closed pattern.

In some embodiments, the first conductive parts 11 in the hollowpatterns of the wiring structure can be an integrated structure, and thesecond conductive parts 12 in the hollow patterns of the wiringstructure can be an integrated structure. In this way, the manufactureof the first conductive part 11 and the second conductive part 12 can befacilitated, and the productivity can be improved greatly.

In the example of FIG. 3, the first conductive part 11 is in a polygonalline shape, and the second conductive part 12 is in an arc shape. Asshown in FIG. 3, a plurality of polygonal line shaped first conductiveparts 11 are connected end to end, forming a shape similar to atriangular wave, and a plurality of arc shaped second conductive parts12 are connected end to end to form a shape similar to a sinusoidalwave. Here, the example of FIG. 3 can be considered as combining andsplicing two sub-wirings of different shapes into one wiring structure1, hence, even if the sub-wiring of one shape is broken, the connectingfunction can also be maintained based on the sub-wiring of the othershape, so as to avoid the problem of failure of the wiring structure dueto bending and breaking.

As previously mentioned, the first conductive part and the secondconductive part of the hollow pattern of the wiring structure areconnected with each other to form a closed pattern, further, the closedpattern may comprise an opening. The opening may be in any suitableshape, e.g., a shape of the opening comprises at least one selected forma group consisting of an ellipse, a circle, a pentagon, a hexagon and anirregular shape. FIG. 5 illustrates the closed pattern formed by thefirst conductive part and the second conductive part of the hollowpattern comprises an ellipse opening.

FIG. 6 illustrates two adjacent hollow patterns of a wiring structure ina display panel according to another embodiment of the disclosure.Similar to the embodiment of FIG. 5, the first conductive part 11 andthe second conductive part 12 in a single hollow pattern are connectedwith each other to form a closed pattern including an ellipse opening.However, an outer contour of the first conductive part 11 is differentfrom that of the first conductive part 11 in FIG. 5. The firstconductive part 11 in FIG. 6 may be an axially symmetric structure, withan axis of symmetry passing through a center of the ellipse opening andbeing substantially perpendicular to a length extension direction of thewhole wiring structure. Referring to FIG. 6, the outer contour of thefirst conductive part 11 includes a first segment S1 and a secondsegment S2 intersecting with each other. The first segment S1 isconnected with an arc outer contour S3 of the second conductive part 12.The first segment S1 may be substantially perpendicular to the lengthextension direction of the whole wiring structure.

FIG. 7 illustrates an enlarged view of multiple wiring structures in thedisplay panel shown in FIG. 1 where the bending area is not bent. Eachwiring structure shown in FIG. 7 may be considered as multiple wiringstructures of FIG. 6 connected in series.

According to another embodiment of the disclosure, the first conductivepart and the second conductive part of each hollow pattern of theplurality of hollow patterns are connected with each other to form atleast three connection nodes, the at least three connection nodes arenot in a same straight line. FIGS. 8 and 9 illustrate an example whereeach hollow pattern comprises three connection nodes formed by the firstconductive part 11 and the second conductive part 12. Referring to FIGS.8 and 9, the first conductive part 11 comprises a first sub-conductiveportion 111 and a second sub-conductive portion 112, each of the firstsub-conductive portion 111, the second sub-conductive portion 112 andthe second conductive part 12 comprises a first terminal 111 a, 112 a,12 a and a second terminal 111 b, 112 b, 12 b, a length of the firstsub-conductive portion 111 extends between the first terminal 111 a andthe second terminal 111 b, a length of the second sub-conductive portion112 extends between the first terminal 112 a and the second terminal 112b, and a length of the second conductive portion 12 extends between thefirst terminal 12 a and the second terminal 12 b. In each hollow patternof the plurality of hollow patterns, the first terminal 111 a of thefirst sub-conductive portion 111 is connected with the first terminal 12a of the second conductive part 12 to form a first connection node A,the second terminal 111 b of the first sub-conductive portion 111 isconnected with the first terminal 112 a of the second sub-conductiveportion 112 to form a second connection node B, and the secondconnection node B is connected to a position between the first terminal12 a and the second terminal 12 b of the second conductive part 12. Thesecond terminal 112 b of the second sub-conductive portion 112 isconnected with the second terminal 12 b of the second conductive part 12to form a third connection node C. As shown in FIG. 8, for any twoadjacent hollow patterns 1 of the plurality of hollow patterns, a firstconnection node A formed by the first terminal 111 a of the firstsub-conductive portion 111 in one of the two adjacent hollow patternsand the first terminal 12 a of the second conductive part 12 in the oneof the two adjacent hollow patterns is connected with a third connectionnode C formed by the second terminal 112 b of the second sub-conductiveportion 112 in the other hollow pattern of the two adjacent hollowpatterns and the second terminal 12 b of the second conductive part 12in the other hollow pattern.

In the example of the hollow pattern as shown in FIG. 9, the firstsub-conductive portion 111 and the second sub-conductive portion 112 ofthe first conductive part 11, as well as the second conductive part 12are all in an arc shape. Here, it can be seen that there are threeconnection nodes between the first conductive part 11 and the secondconductive part 12 in each hollow pattern 1, i.e., nodes A, B, C asshown in the figure. The nodes A and B are in a same straight line,while the nodes A, B, C are not in a same straight line. Hence, even ifthe node A and/or the node B are broken, the node C may still keepconnection function because it is not in the same straight line as thenodes A and B, so as to avoid failure of the wiring structure.

In some embodiments, as shown in FIG. 8 or 9, any two adjacent hollowpatterns 1 of the plurality of hollow patterns form an axially symmetricpattern (an axis of symmetry is a straight line that is perpendicular tothe length extension direction of the wiring structure and passesthrough the connection node between adjacent hollow patterns).

Turning back to FIG. 1, according to some embodiments of the disclosure,the display panel further comprises a plurality of first fan-out wires20 between the display area 1A and the bending area BB, each of theplurality of first fan-out wires 20 is electrically connected with acorresponding data line 40 of the plurality of data lines and acorresponding wiring structure 30 of the plurality of wiring structures,respectively. Further, in some embodiments, the display panel furthercomprises a plurality of second fan-out wires 51, the plurality ofsecond fan-out wires 51 are located between the plurality of pads 50 andthe plurality of wiring structures 30 and electrically connected withthe plurality of pads 50 and the plurality of wiring structures 30. Thepads 50 may be electrically connected with an integrated circuit (e.g.,a source driver) so that signal from the integrated circuit can betransmitted to the wiring structure 30. If the bending area of thedisplay panel is in a bent state, the second fan-out wires 51 may belocated in the back portion 2A shown in FIG. 2. The source driver may beelectrically connected to the data lines 10 via the pads 50, the secondfan-out wires 51, the wiring structures 30 and the first fan-out wires20, thereby supplying data signal to the data lines 10.

According to other embodiments of the disclosure, at least some of theplurality of wiring structures comprises a first sub-wiring and a secondsub-wiring, the first sub-wiring and the second sub-wiring are connectedin parallel with each other, which means a head end of the firstsub-wiring is connected with a head end of the second sub-wiring, and atail end of the first sub-wiring is connected with a tail end of thesecond sub-wiring, so that a structure comprising the first sub-wiringand second first sub-wiring arranged in parallel is formed. FIG. 10illustrates wiring structures of a display panel and a portion of thesignal lines connected with the wiring structures of the display panelaccording to yet another embodiment of the disclosure. The positionwhere the structure shown in FIG. 10 is located in the display panel maycorrespond to the area M indicated with a dotted box in FIG. 1. FIG. 10shows a portion of first fan-out wires 20, a portion of second fan-outwires 51 and wiring structures connected with the first fan-out wires 20and the second fan-out wires 51. At least some of the wiring structurescomprise a first sub-wiring 301 and a second sub-wiring 302 connected inparallel. Each of the first sub-wiring 301 and the second sub-wiring 302includes a first terminal 301 a, 302 a and a second terminal 301 b, 302b, the first terminal 301 a of the first sub-wiring and the firstterminal 302 a of the second sub-wiring are connected with acorresponding first fan-out wire 20 of the plurality of first fan-outwires, respectively. A second terminal 301 b of the first sub-wiring 301and the second terminal 302 b of the second sub-wiring 302 are connectedwith a corresponding second fan-out wiring 51 of the plurality of thesecond fan-out wires, respectively.

The substrate of the display panel according to the above embodimentsmay be flexible, i.e., the display panel is a flexible display panel.The display panel may comprise flexible material such as polyimide.

Yet another embodiment of the disclosure provides a display device,comprising the display panel stated in any of the above embodiments. Thedisplay device can be a liquid crystal display device or anelectroluminescent display device, e.g., any product or component havingthe display function such as an electronic paper, an OLED panel, amobile phone, a panel computer, a television, a display, a laptop, adigital photo frame, a navigator etc.

It could be understood that what are stated above are only exemplaryembodiments for explaining the principle of the disclosure. However, thescope of the application is not so limited. For the ordinary skilledperson in the art, various modifications and improvements can be madewithout departing from the spirit and the essence of the disclosure.These modifications and improvements shall also be regarded as fallinginto the scope of the application.

1. A display panel comprising: a substrate comprising a display area anda non-display area on at least one side of the display area, thenon-display area comprising a bending area; a plurality of sub-pixels inthe display area; a plurality of data lines located in the display areaand electrically connected with the plurality of sub-pixels; a pluralityof wiring structures located in the bending area and electricallyconnected with the plurality of data lines, wherein at least one of theplurality of wiring structures comprises a plurality of hollow patternsconnected successively, each hollow pattern of the hollow patternscomprises a first conductive part having a first pattern and a secondconductive part having a second pattern, wherein the first conductivepart and the second conductive part are connected with each other, andthe first pattern and the second pattern have different shapes; and aplurality of pads in the non-display area, wherein the plurality of padsare located on a side of the plurality of wiring structures away fromthe display area and electrically connected with the plurality of wiringstructures.
 2. The display panel according to claim 1, wherein the firstconductive part and the second conductive part of the hollow patternboth comprise a first terminal and a second terminal, wherein the firstterminal of the first conductive part is connected with the firstterminal of the second conductive part, and the second terminal of thefirst conductive part is connected with the second terminal of thesecond conductive part, such that first conductive part and the secondconductive part are connected with each other to form a closed pattern.3. The display panel according to claim 2, wherein the first conductivepart comprises a bending segment, the second conductive part comprisesan arc segment, a length of the bending segment extends between thefirst terminal and the second terminal of the first conductive part, alength of the arc segment extends between the first terminal and thesecond terminal of the second conductive part, such that the bendingsegment and the arc segment form the closed pattern.
 4. The displaypanel according to claim 2, wherein the closed pattern comprises anopening, a shape of the opening comprises at least one selected form agroup consisting of an ellipse, a circle, a pentagon, a hexagon and anirregular shape.
 5. The display panel according to claim 2, wherein fortwo adjacent hollow patterns of the plurality of hollow patterns, thefirst terminal of the first conductive part in one of the two adjacenthollow patterns is connected with the second terminal of the firstconductive part in the other one of the two adjacent hollow patterns,and the first terminal of the second conductive part in the one of thetwo adjacent hollow patterns is connected with the second terminal ofthe second conductive part in the other one of the two adjacent hollowpatterns.
 6. The display panel according to claim 1, wherein the firstconductive part and the second conductive part of each hollow pattern ofthe plurality of hollow patterns are connected with each other to format least three connection nodes, the at least three connection nodes arenot in a same straight line.
 7. The display panel according to claim 6,wherein the first conductive part comprises a first sub-conductiveportion and a second sub-conductive portion, each of the firstsub-conductive portion, the second sub-conductive portion and the secondconductive part comprises a first terminal and a second terminal, and alength of each of the first sub-conductive portion, the secondsub-conductive portion and the second conductive part extends betweenrespective first terminal and respective second terminal, wherein ineach hollow pattern of the plurality of hollow patterns, the firstterminal of the first sub-conductive portion is connected with the firstterminal of the second conductive part to form a first connection nodeof the at least three connection nodes, the second terminal of the firstsub-conductive portion is connected with the first terminal of thesecond sub-conductive portion to form a second connection node of the atleast three connection nodes, and the second connection node isconnected to a position between the first terminal and the secondterminal of the second conductive part, the second terminal of thesecond sub-conductive portion is connected with the second terminal ofthe second conductive part to form a third connection node of the atleast three connection nodes.
 8. The display panel according to claim 7,for any two adjacent hollow patterns of the plurality of hollowpatterns, the first connection node formed by the first terminal of thefirst sub-conductive portion in one of the two adjacent hollow patternsand the first terminal of the second conductive part in the one of thetwo adjacent hollow patterns is connected with the third connection nodeformed by the second terminal of the second sub-conductive portion inthe other hollow pattern of the two adjacent hollow patterns and thesecond terminal of the second conductive part in the other hollowpattern.
 9. The display panel according to claim 8, wherein each of thefirst sub-conductive portion, the second sub-conductive portion and thesecond conductive part comprises an arc shape.
 10. The display panelaccording to claim 1, wherein any two adjacent hollow patterns of theplurality of hollow patterns form a centrally symmetric pattern.
 11. Thedisplay panel according to claim 1, wherein any two adjacent hollowpatterns of the plurality of hollow patterns form an axially symmetricpattern.
 12. The display panel according to claim 1, wherein a pluralityof first conductive parts of the plurality of hollow patterns comprisingthe first conductive part form an integrated structure.
 13. The displaypanel according to claim 1, wherein a plurality of second conductiveparts of the plurality of hollow patterns comprising the secondconductive part form an integrated structure.
 14. The display panelaccording to claim 1, wherein the display panel further comprises aplurality of first fan-out wires between the display area and thebending area, each of the plurality of first fan-out wires iselectrically connected with a corresponding data line of the pluralityof data lines and a corresponding wiring structure of the plurality ofwiring structures, respectively.
 15. The display panel according toclaim 14, wherein the display panel further comprises a plurality ofsecond fan-out wires, the plurality of second fan-out wires is locatedbetween the plurality of pads and the plurality of wiring structures andelectrically connected with the plurality of pads and the plurality ofwiring structures.
 16. The display panel according to claim 15, whereinat least some of the plurality of wiring structures comprises a firstsub-wiring and a second sub-wiring, the first sub-wiring and the secondsub-wiring are connected in parallel with each other.
 17. The displaypanel according to claim 16, wherein each of the first sub-wiring andthe second sub-wiring comprises a first terminal and a second terminal,the first terminal of the first sub-wiring and the first terminal of thesecond sub-wiring are connected with a corresponding first fan-out wireof the plurality of first fan-out wires, the second terminal of thefirst sub-wiring and the second terminal of the second sub-wiring areconnected with a corresponding second fan-out wire of the plurality ofsecond fan-out wires.
 18. A display device, comprising the display panelaccording to claim
 1. 19. The display device according to claim 18,wherein the first conductive part and the second conductive part of thehollow pattern both comprise a first terminal and a second terminal,wherein the first terminal of the first conductive part is connectedwith the first terminal of the second conductive part, and the secondterminal of the first conductive part is connected with the secondterminal of the second conductive part, such that first conductive partand the second conductive part are connected with each other to form aclosed pattern.
 20. The display device according to claim 19, whereinthe first conductive part comprises a bending segment, the secondconductive part comprises an arc segment, a length of the bendingsegment extends between the first terminal and the second terminal ofthe first conductive part, a length of the arc segment extends betweenthe first terminal and the second terminal of the second conductivepart, such that the bending segment and the arc segment form the closedpattern.